Working on the mutex filter.

Added super admin config and renew process upon server start;
New records' space level is now controlled by the creator's account
space level.
ToDo: apply these to the mutex filter and data routes
1. Records that have a space level above a given user's account space
can not be seen or modified by this user;
2. User's from the 'User' space will have to further consult the
targeting record's model def for mutex meta config. (private/read-only)